Biopsia guiada por ecografía para el diagnóstico de masas ováricas. Revisión sistemática / Ecography guided biopsy for the diagnosis of ovarian masses. Systematic review

El diagnóstico definitivo del cáncer de ovario precisa de confirmación histológica. En determinadas situaciones, para evitar la morbilidad de la resección quirúrgica, es posible hacer una biopsia guiada por ecografía para obtener el diagnóstico anatomopatológico. El objetivo de esta revisión sistemática fue evaluar la adecuación, fiabilidad, precisión y perfil de seguridad de la biopsia guiada por ecografía de masas ováricas. Siguiendo el modelo PRISMA 2020, se hizo una búsqueda bibliográfica en PubMed, Embase y Scopus y se recopilaron un total de 10.245 artículos, de los cuales 24 fueron finalmente incluidos. Los trabajos incluían de forma mayoritaria pacientes con tumores inoperables avanzados, pobre performance status y otros factores de mal pronóstico, con masas de contenido sólido y márgenes irregulares, generalmente accesibles por vía transvaginal. En la mayoría de los artículos las pacientes presentaban historia previa de malignidad o tumores inoperables en estadios avanzados. Las masas ováricas biopsiables se definían en la ecografía como malignas o potencialmente malignas, con la presencia destacada de un componente sólido o mixto con márgenes irregulares o heterogéneos. La técnica más utilizada en los estudios incluidos fue la biopsia con aguja gruesa o tru-cut, con altos valores de adecuación, fiabilidad, precisión y rendimiento, así como un buen perfil de seguridad y bajas tasas de complicaciones. En conclusión, la biopsia con aguja gruesa de las masas anexiales guiada por ecografía, en pacientes subsidiarios de tratamiento neoadyuvante, es una técnica con altas tasas de adecuación, fiabilidad, precisión y buen perfil de seguridad.(AU)

The definitive diagnosis of ovarian cancer requires histological confirmation. In certain situations, to avoid the morbidity of surgical resection, it is possible to perform an ultrasound-guided biopsy to obtain the pathological diagnosis. The aim of this systematic review was to assess the adequacy, reliability, accuracy, and safety profile of ultrasound-guided biopsy of ovarian masses. Following the PRISMA 2020 model, a bibliographic search was carried out in PubMed, Embase and Scopus, collecting a total of 10,245 articles, of which 24 were finally included. The studies mainly included patients with advanced inoperable tumors, poor performance status and other poor prognostic factors, with masses of solid content and irregular margins, generally accessible through the transvaginal route. In most of the articles, the patients had a previous history of malignancy or had inoperable tumors in advanced stages. Biopsiable ovarian masses were defined ultrasonographically as malignant or potentially malignant, mainly highlighting the presence of a solid or mixed component and irregular or heterogeneous margins. The most widely used technique in the included studies was core needle or tru-cut biopsy, presenting high values of adequacy, reliability, precision and performance, as well as a good safety profile with low complication rates. In conclusion, ultrasound-guided core needle biopsy of adnexal masses in patients eligible for neoadjuvant treatment is a technique with high adequacy, reliability, and precision rates, as well as a good safety profile.(AU)

Descripción de un caso de hernia diafragmática de Morgagni con derrame pericárdico masivo resuelto mediante pericardiocentesis intrauterina / Description of a case of Morgagni's diaphragmatic hernia with massive pericardial effusion resolved by intrauterine pericardiocentesis

Introducción: Las hernias diafragmáticas de Morgagni diagnosticadas prenatalmente son una rara entidad, con menor riesgo asociado de hipoplasia pulmonar y problemas respiratorios que las hernias diafragmáticas posteriores. Nuestro caso pone de manifiesto cómo en los casos de hernia diafragmática de Morgagni los pulmones tienden a desarrollarse completamente, a pesar del significativo derrame pericárdico o cuán disminuidos pueden aparentar. Principales síntomas y/o hallazgos clínicos: Hernia diafragmática de Morgagni diagnosticada a las 14 semanas de gestación, con derrame pericárdico masivo y herniación torácica anterior del hígado. Diagnósticos principales, intervenciones terapéuticas y resultados: No se identificaron otras malformaciones asociadas, se descartaron otras causas de derrame pericárdico y el cariotipo fetal analizado fue normal. A las 25 semanas, se realizó una pericardiocentesis fetal intrauterina, consiguiendo una significativa distensión pulmonar, con una adecuada vascularización. Tras el nacimiento, la recién nacida precisó soporte ventilatorio debido a una hipoxemia severa causada por la hipertensión pulmonar, corrigiéndose el defecto quirúrgicamente a los 6 días de vida. La evolución posterior fue favorable, sin presentar problemas respiratorios significativos. Conclusión: La detección ecográfica de esta rara anomalía resulta útil para el manejo óptimo, y el drenaje pericárdico puede favorecer una resolución prenatal del derrame pericárdico, permitiéndonos evaluar de forma adecuada el riesgo de hipoplasia pulmonar.(AU)

Introduction: Morgagni diaphragmatic hernia with prenatal diagnosis is a rare entity, with lower risk of pulmonary hypoplasia and respiratory problems than posterior diaphragmatic hernia. Our case highlights how in Morgagni diaphragmatic hernia cases lungs tend to develop properly, despite significant pericardial effusion or how greatly diminished they may seem. Main symptoms and/or clinical findings: Morgagni diaphragmatic hernia diagnosed at 14 weeks, with massive pericardial effusion and anterior thoracic herniation of the liver. Main diagnosis, therapeutic interventions, and results: No other malformations were identified, other causes of pericardial effusion were ruled out and foetal karyotype was normal. At 25 weeks, in-utero pericardiocentesis was performed, observing significant pulmonary distension and adequate vascularization. After delivery, the newborn required respiratory support due to severe hypoxaemia related to pulmonary hypertension. Six days later surgical diaphragm closure was performed. The newborn had no significant respiratory problems and progressed positively after surgery. Conclusion: Ultrasonographic detection of this rare anomaly is useful for optimal management, and pericardial drainage can provide prenatal resolution of pericardial effusion, enabling us to evaluate pulmonary hypoplasia risk.(AU)

Nuclear Medicine in the diagnosis of pathologies of the spine: role of hybrid imaging. / Medicina nuclear en el diagnóstico de las afecciones de la columna vertebral: papel de la imagen híbrida.

Clinical problems in the human spine are still common in our society, often causing pain and can also limit movement. Back pain is a very common clinical entity, although difficult to diagnose due to its multifactorial nature. There are multiple processes that can alter the structure of the spine, injure vertebrae and/or the surrounding tissue. For the study of the spine, image diagnosis is essential, and within this, molecular hybrid techniques play an important role by providing us with an image of functional and morphological fusion. Among these, SPECT/CT is key in the diagnosis of traumatic and stress pathology, allowing us to locate hidden vertebral fractures, and is also very useful in degenerative and post-surgical pathology. On the other hand, PET/CT with 18F-FDG also plays an important role in the management and monitoring of infectious and oncological processes. This review describes the application of these hybrid techniques in the different pathologies of the spine and the findings of their images, being very useful for the diagnostic assessment and therapeutic management of the patient.

Imagen híbrida (SPECT/TC) en la evaluación y manejo de un paciente con calcificación heterotópica y prótesis de cadera / Hybrid image (SPECT/CT) in the evaluation and management of a patient with heterotopic calcification and hip prostheses

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Revisión del papel de la Medicina Nuclear en el diagnóstico de la infección musculoesquelética / Role of Nuclear Medicine in the diagnosis of musculoskeletal infection: a review

Las enfermedades inflamatorias e infecciosas osteoarticulares pueden tener graves consecuencias para el paciente si no se diagnostican a tiempo. En las últimas décadas, diferentes modalidades de la Medicina Nuclear han permitido estudiar la fisiopatología de estos procesos y desempeñan un importante papel hoy en día en el diagnóstico, caracterización y monitorización de las enfermedades infecciosas musculoesqueléticas. Por lo tanto, es esencial que todos los especialistas de Medicina Nuclear tengan una visión de las ventajas y desventajas de cada método y saber cómo usarlos correctamente en el diagnóstico del paciente. Este artículo destaca el papel de la Medicina Nuclear en la estandarización del abordaje diagnóstico en pacientes con enfermedades infecciosas/inflamatorias, en particular en osteomielitis periférica, artritis séptica, infecciones de prótesis articulares, pie diabético infectado e infecciones de la columna vertebral. Los autores presentan las pruebas con radionúclidos más comunes, con sus ventajas e indicaciones clínicas, para lograr un diagnóstico adecuado de la infección y la inflamación

Inflammatory and infectious osteoarticular diseases can cause serious consequences for the patient if they are not diagnosed on time. In the last decades, different modalities of nuclear medicine have allowed to study the physiopathology of these processes, and nowadays, they play an important role in diagnosis, characterization and monitoring of musculoskeletal infectious diseases. Therefore, it is essential that every nuclear medicine physician have a vision of the advantages and disadvantages of each method and know how to use them correctly in the diagnosis of the patient. This article highlights the role of nuclear medicine in standardizing the diagnostic approach in patients with infectious/inflammatory diseases, in particular in peripheral osteomyelitis, septic arthritis, prosthetic joint infections, infected diabetic foot and spinal infections. The authors reveal the role of the most common radionuclides tests, with their advantages and clinical indications, to achieve an adequate diagnosis of infection and inflammation

Role of Nuclear Medicine in the diagnosis of musculoskeletal infection: a review. / Revisión del papel de la Medicina Nuclear en el diagnóstico de la infección musculoesquelética.

Inflammatory and infectious osteoarticular diseases can cause serious consequences for the patient if they are not diagnosed on time. In the last decades, different modalities of nuclear medicine have allowed to study the physiopathology of these processes, and nowadays, they play an important role in diagnosis, characterization and monitoring of musculoskeletal infectious diseases. Therefore, it is essential that every nuclear medicine physician have a vision of the advantages and disadvantages of each method and know how to use them correctly in the diagnosis of the patient. This article highlights the role of nuclear medicine in standardizing the diagnostic approach in patients with infectious/inflammatory diseases, in particular in peripheral osteomyelitis, septic arthritis, prosthetic joint infections, infected diabetic foot and spinal infections. The authors reveal the role of the most common radionuclides tests, with their advantages and clinical indications, to achieve an adequate diagnosis of infection and inflammation.

Imagen híbrida en la patología del pie y tobillo / Hybrid imaging in foot and ankle disorders

La patología del pie y tobillo es una de las más frecuentes del sistema musculoesquelético y de gran repercusión en la calidad de vida de los pacientes. El diagnóstico preciso supone un desafío clínico importante debido a que la compleja anatomía y la función del pie dificultan la localización del origen del dolor por un examen clínico de rutina. En el estudio de la patología del pie se han utilizado técnicas anatómicas (radiografía, resonancia magnética [RM], ultrasonido y tomografía computarizada [TC]) y funcionales (gammagrafía ósea [GO], tomografía de emisión de positrones [PET] y RM). La imagen híbrida combina las ventajas de los estudios morfológicos y funcionales de forma sinérgica, ayudando al clínico en la gestión de problemas complejos. En este artículo profundizamos en la anatomía y en la biomecánica del pie y tobillo y describimos las indicaciones potenciales de las técnicas hibridas actuales disponibles para el estudio de la patología del pie y tobillo

Disorders of the foot and ankle are some of the most frequent ones affecting the musculoskeletal system and have a great impact on patients’ quality of life. Accurate diagnosis is an important clinical challenge because of the complex anatomy and function of the foot, that make it difficult to locate the source of the pain by routine clinical examination. In the study of foot pathology, anatomical imaging (radiography, magnetic resonance imaging [MRI], ultrasound and computed tomography [CT]) and functional imaging (bone scan, positron emission tomography [PET] and MRI) techniques have been used. Hybrid imaging combines the advantages of morphological and functional studies in a synergistic way, helping the clinician manage complex problems. In this article we delve into the anatomy and biomechanics of the foot and ankle and describe the potential indications for the current hybrid techniques available for the study of foot and ankle disease

Hybrid imaging in foot and ankle disorders. / Imagen híbrida en la patología del pie y tobillo.

Disorders of the foot and ankle are some of the most frequent ones affecting the musculoskeletal system and have a great impact on patients' quality of life. Accurate diagnosis is an important clinical challenge because of the complex anatomy and function of the foot, that make it difficult to locate the source of the pain by routine clinical examination. In the study of foot pathology, anatomical imaging (radiography, magnetic resonance imaging [MRI], ultrasound and computed tomography [CT]) and functional imaging (bone scan, positron emission tomography [PET] and MRI) techniques have been used. Hybrid imaging combines the advantages of morphological and functional studies in a synergistic way, helping the clinician manage complex problems. In this article we delve into the anatomy and biomechanics of the foot and ankle and describe the potential indications for the current hybrid techniques available for the study of foot and ankle disease.

Sinoviortesis radioisotópica en pacientes en edad pediátrica y adolescentes con hemofilia / Radioisotope synoviorthesis in paediatric and adolescent patients with haemophilia

Objetivo. Valorar la eficacia terapéutica y las complicaciones de la sinoviortesis radioisotópica observadas en pacientes en edad pediátrica y adolescentes con hemofilia. Material y métodos. Estudio prospectivo de cohorte histórica en el que se incluyó, de forma consecutiva, a 20 pacientes varones con hemofilia (edad media 13,1 años, rango: 4-17 años). El diagnóstico de sinovitis se estableció clínicamente y se confirmó por radiología simple o RMN). Evaluación mediante la clasificación de Fernández-Palazzi. Criterios de inclusión: menores de 18 años de edad con hemofilia y más de un hemartros en menos de 3 meses, manteniéndose una sinovitis crónica a pesar de intensificar el tratamiento profiláctico. Criterios de exclusión: cualquier contraindicación para la realización de la sinoviortesis. Se realizaron 27 sinoviortesis radioisotópicas con citrato de 90Y colidal o sulfuro 186Re coloidal. La eficacia del procedimiento se evaluó a los 6 meses mediante comparación clínica pre- y postratamiento. Tiempo medio de seguimiento: 64,9 meses (rango 18-109 meses). Resultados. En 19 de las 27 sinoviortesis (70,3%) hubo una respuesta buena o excelente y en 8 articulaciones (29,7%), respuesta parcial. Se repitió el procedimiento en 3 articulaciones de 3 pacientes diferentes debido a la aparición de nuevo hemartros, obteniendo en todos los casos una respuesta buena o excelente. Apareció reacción inflamatoria postratamiento en 4 casos (14,8%), que mejoraron con tratamiento médico. No se observaron lesiones malignas ni premalignas durante el seguimiento. Conclusión. La sinoviortesis radioisotópica es un procedimiento efectivo, en pacientes en edad pediátrica y adolescentes con hemofilia, mínimamente invasivo, fácil de realizar, seguro y con complicaciones mínimas (AU)

Objective. To assess the outcome and adverse-effects of the radioisotope synoviorthesis in paediatric and adolescent patients with haemophilia. Material and Methods. Prospective study of historical cohort was conducted. A total of 20 consecutive haemophiliacs with a mean age of 13.1 years (range 4-17) were included with a mean follow-up of 64.9 months (range 18-109). The diagnosis of synovitis was established on the basis of clinical follow-up including radiological images (radiography and/or MRI). For evaluation, the classification proposed by Fernandez-Palazzi was used. Inclusion criteria: Patients aged less than 18 years old with haemophilia and more than one haemarthrosis in less than 3 months remaining a chronic synovitis despite prophylactic therapy intensification. Exclusion criteria: Any contraindication for radionuclide synoviorthesis. Twenty-seven radioisotope synoviorthesis with 90Y-citrate-colloid and/or 186Re-sulphide-colloid were done. The effectiveness of the procedure was assessed through pre and posttreatment clinical comparison at 6 months after radioisotope synoviorthesis. Results. Nineteen of the 27 synoviorthesis (70.3%) had a good or excellent response and 8 joints (29.7%) had partial response. It was necessary to repeat the procedure in 3 joints in 3 different patients, obtaining in all cases a good or excellent response. We appreciated inflammatory reaction after procedure in 4 cases (14.8%), which improved with analgesics and nonsteroidal anti-inflamatory drugs. None of the patients presented malignant or premalignant lesions during the follow-up. Conclusion. The radionuclide synoviorthesis is a very effective procedure in paediatric and adolescent patients with hemophilia, being a minimally invasive procedure, easy to perform, safe and with minimal side effects (AU)

The role of selection and historical factors in driving population differentiation along an elevational gradient in an island bird.

Adaptation to local environmental conditions and the range dynamics of populations can influence evolutionary divergence along environmental gradients. Thus, it is important to investigate patterns of both phenotypic and genetic variations among populations to reveal the respective roles of these two types of factors in driving population differentiation. Here, we test for evidence of phenotypic and genetic structure across populations of a passerine bird (Zosterops borbonicus) distributed along a steep elevational gradient on the island of Réunion. Using 11 microsatellite loci screened in 401 individuals from 18 localities distributed along the gradient, we found that genetic differentiation occurred at two spatial levels: (i) between two main population groups corresponding to highland and lowland areas, respectively, and (ii) within each of these two groups. In contrast, several morphological traits varied gradually along the gradient. Comparison of neutral genetic differentiation (FST ) and phenotypic differentiation (PST ) showed that PST largely exceeds FST at several morphological traits, which is consistent with a role for local adaptation in driving morphological divergence along the gradient. Overall, our results revealed an area of secondary contact midway up the gradient between two major, cryptic, population groups likely diverged in allopatry. Remarkably, local adaptation has shaped phenotypic differentiation irrespective of population history, resulting in different patterns of variation along the elevational gradient. Our findings underscore the importance of understanding both historical and selective factors when trying to explain variation along environmental gradients.

Radioisotope synoviorthesis in paediatric and adolescent patients with haemophilia.

OBJECTIVE: To assess the outcome and adverse-effects of the radioisotope synoviorthesis in paediatric and adolescent patients with haemophilia. MATERIAL AND METHODS: Prospective study of historical cohort was conducted. A total of 20 consecutive haemophiliacs with a mean age of 13.1 years (range 4-17) were included with a mean follow-up of 64.9 months (range 18-109). The diagnosis of synovitis was established on the basis of clinical follow-up including radiological images (radiography and/or MRI). For evaluation, the classification proposed by Fernandez-Palazzi was used. INCLUSION CRITERIA: Patients aged less than 18 years old with haemophilia and more than one haemarthrosis in less than 3 months remaining a chronic synovitis despite prophylactic therapy intensification. EXCLUSION CRITERIA: Any contraindication for radionuclide synoviorthesis. Twenty-seven radioisotope synoviorthesis with (90)Y-citrate-colloid and/or (186)Re-sulphide-colloid were done. The effectiveness of the procedure was assessed through pre and posttreatment clinical comparison at 6 months after radioisotope synoviorthesis. RESULTS: Nineteen of the 27 synoviorthesis (70.3%) had a good or excellent response and 8 joints (29.7%) had partial response. It was necessary to repeat the procedure in 3 joints in 3 different patients, obtaining in all cases a good or excellent response. We appreciated inflammatory reaction after procedure in 4 cases (14.8%), which improved with analgesics and nonsteroidal anti-inflamatory drugs. None of the patients presented malignant or premalignant lesions during the follow-up. CONCLUSION: The radionuclide synoviorthesis is a very effective procedure in paediatric and adolescent patients with hemophilia, being a minimally invasive procedure, easy to perform, safe and with minimal side effects.

Valoración nutricional de la dieta sin gluten. ¿Es la dieta sin gluten deficitaria en algún nutriente? / Nutritional assessment of gluten-free diet. Is gluten-free diet deficient in some nutrient?

INTRODUCCIÓN: Clásicamente, se ha presentado la dieta sin gluten como una dieta sana, pero existen artículos que defienden que puede presentar algunas deficiencias nutricionales. En el presente estudio se valoró si existía algún cambio en los aportes de calorías, principios inmediatos, proporción de ácidos grasos, vitaminas, minerales y fibra en los niños que eran diagnosticados de celiaquía, comparando la dieta con gluten previa al diagnóstico con la dieta al año del diagnóstico sin gluten. También se valoró el grado de repercusión clínico o analítico que podrían tener los déficits nutricionales. MATERIAL Y MÉTODOS: Estudio observacional, descriptivo y prospectivo en el cual se recogieron los datos de encuesta dietéticas, antropometría y analítica previas al diagnóstico de celiaquía siguiendo dieta con gluten y al año del diagnóstico, con dieta sin gluten de los pacientes diagnosticados de enfermedad celíaca. RESULTADOS: Treinta y siete pacientes reúnen criterios de estudio. Se encontró una disminución en la ingesta de ácidos grasos saturados, con un aumento de monoinsaturados, un aumento en la ingesta de fósforo en la dieta sin gluten y un ingesta deficitaria de vitamina D en ambas dietas. Clínicamente, al año de dieta sin gluten hay mejoría en el peso y la talla. Analíticamente, hay mejoría en las cifras de hemoglobina, ferritina, vitamina D y parathormona plasmáticos. CONCLUSIÓN: La dieta sin gluten presenta mínimas deficiencias, similares a las presentes en la dieta con gluten, con una mejoría en el perfil lipídico, aumentando la proporción de ácidos grasos monoinsaturados en detrimento de los ácidos grasos saturados

INTRODUCTION: The gluten-free diet has traditionally been accepted as a healthy diet, but there are articles advocating that it may have some nutritional deficiencies. The current study assesses whether there was any change in the contributions of calories, essential elements, proportion of fatty acids, vitamins, minerals and fiber in children who were diagnosed with celiac diseases, comparing the diet with gluten prior one year after diagnosis with the diet without gluten to the year of diagnosis. The level of clinical or analytical impact that nutritional deficits could have was also assessed. MATERIAL AND METHODS: A prospective,descriptive, observational study in which information was collected from a dietary survey, anthropometric and analytical data at pre-diagnosis of celiac disease and following a gluten diet and one year after celiac disease diagnosis, under gluten-free diet. RESULTS: A total of 37 patients meet the study criteria. A decrease in the intake of saturated fatty acids was found, with an increase of monounsaturated fatty acids and an increase in the intake of phosphorus in the diet without gluten. A deficient intake of vitamin D was found in both diets. Clinically, at year of gluten-free diet there was an improvement in weight and size. Analytically, there was an improvement in hemoglobin, ferritin, vitamin D, and parathyroid hormone in plasma. CONCLUSION: The gluten-free diet has minimal deficiencies, similar to those present in the diet with gluten, with an improvement in the lipid profile by increasing the proportion of monounsaturated fatty acids to the detriment of saturated fatty acids

The role of 18FDG, 18FDOPA PET/CT and 99mTc bone scintigraphy imaging in Erdheim-Chester disease.

Erdheim-Chester disease (ECD) is a rare non-Langerhans cell histiocitosis, characterized by multisystemic xanthogranulomatous infiltration by foamy histiocytes that stain positively for CD68 marker but not express CD1a and S100 proteins. Etiology and pathogenesis are still unknown and only about 500 cases are related in the literature. Multisystemic involvement leads to a wide variety of clinical manifestations that results in a poor prognosis although recent advances in treatment. We present the clinical, nuclear medicine findings and therapeutic aspects of a serie of 6 patients with histopathological diagnosis of ECD, who have undergone both bone scintigraphy (BS) and 18F-fluorodeoxyglucose (18FDG)-PET/CT scans in our institution. A complementary 18F-fluorodopa (18FDOPA)-PET/CT was performed in one case. Three different presentations of the disease were observed in our casuistic: most indolent form was a cutaneous confined disease, presented in only one patient. Multifocal involvement with central nervous system (CNS) preservation was observed in two patients. Most aggressive form consisted in a systemic involvement with CNS infiltration, presented in three patients. In our experience neurological involvement, among one case with isolate pituitary infiltration, was associated with mortality in all cases. 18FDG-PET/CT and BS were particularly useful in despite systemic involvement; locate the site for biopsy and the treatment response evaluation. By our knowledge, 18FDOPA-PET/CT not seems useful in the initial staging of ECD. A baseline 18FDG-PET/CT and BS may help in monitoring the disease and could be considered when patients were incidentally diagnosed and periodically 18FDG-PET/CT must be performed in the follow up to evaluate treatment response.

[Nutritional assessment of gluten-free diet. Is gluten-free diet deficient in some nutrient?]. / Valoración nutricional de la dieta sin gluten. ¿Es la dieta sin gluten deficitaria en algún nutriente?

INTRODUCTION: The gluten-free diet has traditionally been accepted as a healthy diet, but there are articles advocating that it may have some nutritional deficiencies. The current study assesses whether there was any change in the contributions of calories, essential elements, proportion of fatty acids, vitamins, minerals and fiber in children who were diagnosed with celiac diseases, comparing the diet with gluten prior one year after diagnosis with the diet without gluten to the year of diagnosis. The level of clinical or analytical impact that nutritional deficits could have was also assessed. MATERIAL AND METHODS: A prospective,descriptive, observational study in which information was collected from a dietary survey, anthropometric and analytical data at pre-diagnosis of celiac disease and following a gluten diet and one year after celiac disease diagnosis, under gluten-free diet. RESULTS: A total of 37 patients meet the study criteria. A decrease in the intake of saturated fatty acids was found, with an increase of monounsaturated fatty acids and an increase in the intake of phosphorus in the diet without gluten. A deficient intake of vitamin D was found in both diets. Clinically, at year of gluten-free diet there was an improvement in weight and size. Analytically, there was an improvement in hemoglobin, ferritin, vitamin D, and parathyroid hormone in plasma. CONCLUSION: The gluten-free diet has minimal deficiencies, similar to those present in the diet with gluten, with an improvement in the lipid profile by increasing the proportion of monounsaturated fatty acids to the detriment of saturated fatty acids.

Extremely reduced dispersal and gene flow in an island bird.

The Réunion grey white-eye, Zosterops borbonicus, a passerine bird endemic to Réunion Island in the Mascarene archipelago, represents an extreme case of microgeographical plumage colour variation in birds, with four distinct colour forms occupying different parts of this small island (2512 km(2)). To understand whether such population differentiation may reflect low levels of dispersal and gene flow at a very small spatial scale, we examined population structure and gene flow by analysing variation at 11 microsatellite loci among four geographically close localities (<26 km apart) sampled within the distribution range of one of the colour forms, the brown-headed brown form. Our results revealed levels of genetic differentiation that are exceptionally high for birds at such a small spatial scale. This strong population structure appears to reflect low levels of historical and contemporary gene flow among populations, unless very close geographically (<10 km). Thus, we suggest that the Réunion grey white-eye shows an extremely reduced propensity to disperse, which is likely to be related to behavioural processes.

Prevalence and characteristics of bone disease in cirrhotic patients under evaluation for liver transplantation.

BACKGROUND: We performed a retrospective study to examine the prevalence of bone disease (BD) among cirrhotic patients being evaluated for liver transplantation (OLT) using bone densitometry dual-energy x-ray absorptiometry in the hip/femoral neck and lumbar spine. The associations of BD with demographic and clinical data, disease etiology and liver function were studied by univariate and multivariate logistic regression analyses. Osteopenia and osteoporosis were defined by World Health Organization criteria. RESULTS: We included 486 patients (79% men of mean age, 53 ± 8.8 years (range, 21-69) who included 62.6% smoker and 23.7% diabetic subjects. Body mass index (BMI) was 28.8 ± 5.7 kg/m(2) (range, 16-43). The liver disease was Child-Pugh class A (22%), B (51%), or C (27%); the Model for End-Stage Liver Disease (MELD) score was 14.6 ± 5.4 (range, 7-33). The disease etiology was alcohol (59%), hepatitis C (32%), hepatitis B (10%), primary biliary cirrhosis (PBC) (2.3%), secondary biliary cirrhosis, (2%) or other causes (10%). In all, 350 patients (72%) had BD in the hip/femoral neck and/or lumbar spine: Global hip, 26% (osteopenia, 22%; osteoporosis, 4%); femoral neck, 48% (osteopenia, 43%; osteoporosis, 5%) and lumbar spine, 63% (osteopenia, 40%; osteoporosis, 23%). Univariate analysis showed the BD risk to increase with the following variables: Female gender (odds ratio [OR], 1.88; P = .023) and lower BMI (OR, 0.95; P = .012). Upon multivariate analysis, female gender (OR, 2.43; P = .004), lower BMI (OR, 0.96; P = .016), and tobacco use (OR, 1.59; P = .043) were significant. PBC showed BD in 100% of cases. By adjusting bone mineral density (BMD) values to age (Z-score) in relation to that defined by T-score, we observed a decrease in BD prevalence in both the femoral neck (20% vs 48%) and the lumbar spine (44% vs 63%). CONCLUSION: BD, especially in the lumbar spine, is common among cirrhotic patients under evaluation for OLT. Cirrhosis is a major BD risk factor that remains even when BMD values are adjusted for age. Female gender, lower BMI, and tobacco consumption are major risk factors for BD in cirrhotic patients. Bone densitometry must be included in the OLT evaluation of all patients.